Mr. Monk and the Three Pies - S2-E11
Continuity mistake: When Van Rankin takes the borrowed flour from his kitchen counter and hands it to Sharona, it's in a standard paper flour sack, and the counter is clean. Later, there's flour dust on the counter and the impression of a large, round flour tin - like the one in Monk's kitchen - instead of an imprint of the paper sack. (00:37:20)
Mr. Monk and the Miracle - S7-E9
Continuity mistake: When Julie comments on Monk's cardboard Christmas tree, her hair changes with each shot reversal, from combed straight across her back to parted and falling over one shoulder. (00:04:05)
Mr. Monk and the Other Woman - S1-E8
Plot hole: Monk says that the two files, both with tab at the middle, were kept together, which led him to discover that the person related to this file is 'the guy'. In an earlier scene, when Monk is searching the file cabinets, he picks up one of these two files and tells Sharona that this file is of 'the guy'. How can he say which one of the two files with middle tabs, which are put together, is related to 'the guy'? Impossible. (00:39:00 - 00:40:00)
Mr. Monk and the Really, Really Dead Guy - S5-E15
Visible crew/equipment: Inside the CSI van, when the investigators all turn to look at Randy, an equipment shadow sweeps across the wall at the upper right of the screen.
Mr. Monk Is on the Run (1) - S6-E15
Plot hole: The D.A. says that ballistics show that the bullet came from Monk's gun. The simplest thing to do would be to look at the gun, they'd know that it hadn't been fired and was full. With Monk's OCD we know it was cleaned, and the sheriff came in right after, so Monk couldn't have reloaded it. Yet they overlook all of this.
Mr. Monk and the Candidate (2) - S1-E2
Other mistake: When Monk is climbing the ladder to pursue the killer, at a couple of points, he wipes a rung, then grabs the one above it. (00:18:15)
Mr. Monk Goes to Mexico - S2-E2
Factual error: Monk states that one of the reasons he suspected Dr. Maduro was because the doctor stated the amount of fluid in the victim's lungs in pints, which meant the doctor had worked in the US. But even in the US, the medical profession uses the metric system.
Mr. Monk and the Daredevil - S6-E7
Continuity mistake: During the fight with Harold's cousin Natalie's shoes are on and off her feet several times.
Mr. Monk and the 12th Man - S2-E9
Plot hole: Monk identifies the killer because of a shirt sleeve that gets ripped off... he noticed the button is sewed on in a unique manner with the threads parallel as opposed to the "standardized" crisscross pattern. The killer and Monk coincidentally use the same dry cleaner and Mrs. Ling sews buttons parallel because it's her style. Dialogue in the episode indicated she is the only one who sews buttons on like that. But I checked over 20 button up shirts here at my house and the ratio of crisscross to parallel button sewing methods is 50% of each - hardly some unique identification method.
Mr. Monk and the Panic Room - S3-E2
Factual error: The cops gain entry to the panic room to be faced with a chimp waving around a loaded handgun, apparently having shot a man, and shrug and make jokes about reading him his rights, instead of expressing the slightest concern that this animal might shoot them. Cops shoot remotely aggressive dogs all the time, but an ape with a gun doesn't even make them raise an eyebrow. Plus the police never did a gunshot residue test on the chimp. Standard procedure, and would've proven they didn't shoot.
Mr. Monk and the Wrong Man - S6-E8
Plot hole: Monk supposedly hears for the first time that Max was not carrying anything away from the crime scene when he speaks to the witness in front of the church. This leads him to conclude that there must have been a 2nd man with Max 14 years ago. But this does not make sense given that the witness with her photographic memory did not change her testimony and given Monks ability to observe and memorize details it is very unlikely that he did not come to that conclusion 14 years ago already. (00:32:45)
Plot hole: In this episode the police are using the toupee of the commissioner to identify the torso as the missing woman. In reality that would not be possible since cut hair is missing the root and therefore only contains mitochondrial DNA, which can only be used to identify a human's relation via the female lineage, as it is the same in relatives and passed through generations from the mother to her children. Furthermore, the identification of said torso would likely not be sufficient proof that Mr. Harley killed her as he may claim that somebody misled him to believe she was in Paris by placing the telephone call he mentioned to police.
Mr. Monk Gets Cabin Fever - S3-E12
Other mistake: Kathy says "I'm going to get me one of those new Le Barons." Chrysler discontinued the Le Baron in 1995. Since the episode is from 2005, she should have said Sebring.
Mr. Monk and the Panic Room - S3-E2
Continuity mistake: Just after the Captain presses the button to open the panic room door, his arms are both down. When it cuts to a shot looking at him from inside the panic room, his left arm is up against the door. (00:14:10)
Mr. Monk and the Employee of the Month - S3-E7
Audio problem: The audio of the victim screaming is repeated. The "Oh! Help! Help!" sounds the same twice. (00:02:05)
Other mistake: During the flashback of the perpetrator beating up the victim with a baseball bat, the shot is visibly spliced and there's a jump cut while he is between swings of the bat. (00:32:50)
Continuity mistake: The exterior of Monk's apartment building looks completely different in various episodes.
Mr. Monk Bumps His Head - S4-E11
Other mistake: The diner Monk enters to eat something after the truck driver gave him five bucks is the same diner that Christie and Sharona are waiting in to meet Monk after work in the episode Monk and the employee of the month. But while this episode is said to be in Wymington, the earlier one is set in San Francisco.
Suggested correction: This is trivia at best. While the set may be reused, it's not meant to be the same diner. It might be a chain restaurant so they look similar, but the seats inside are different.
Mr. Monk and the Psychic - S1-E3
Plot hole: When Monk is looking for the pebble, he immediately makes an announcement through the shop's speaker system and then directly asks the guy wiping the floor where the rest of the garbage is. Given the size of the trash can it is not realistic that the guy wiping could have filled the trashcan, emptied it and have it filled half again in the 2 to 10 minutes that might have passed since the pebble got lost.
Mr. Monk Gets Lotto Fever - S7-E3
Continuity mistake: Right after the taxi driver drives off and the couple approaches Monk and Natalie there is a man passing by right behind the couple, but when camera angle changes within a split second that man is gone.
